<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        a:link{
            /* 将a标签转为块元素 */
            display: block;
            width: 93px;
            height: 29px;
            background-image: url(./img/08/link.png);
        }
        a:hover{
            background-image: url(./img/08/hover.png);
        }
        a:active{
            background-image: url(./img/08/active.png);
        }
        /* 
            图片属于网页中的外部资源 外部资源需要浏览器单独发送请求加载
            浏览器加载资源是按需加载用则加载，不用不加载
            link.png会先加载，hover.png、active.png就不会加载
         */
    </style>
</head>
<body>
    <a href="javascript:;"></a>
</body>
</html>